"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Situps and crunches aren't the only (or even the best!) way to strengthen and define your abs. For proof, ...

This one’s an abs-olute winner. A classic, fit-for-all workout is back in the spotlight after a popular workout video resurfaced, showing a fitness influencer’s surefire way to a rock-hard core using ...

Confession: I'm a certified personal trainer, but I absolutely dread core work. (Anyone else?) My loathing could be because my core has always been one of my weakest muscle groups, or the burning ...

You'll need better moves to build a functional core. Here’s how you can upgrade your workouts.

Kettlebells are a versatile, beginner-friendly modality that can make your core workouts more effective and varied, plus they’re fun! Remember: meet yourself where you’re at. Even adding just one or ...

Expert trainers explain how to get the most out of kettlebell workouts—and which are the best to integrate into your weekly ...

Like a barbell or dumbbell, there are plenty of kettlebell-specific movements out there to help you get the most out of this effective workout gear. From the simple to the intricate, you can construct ...